See your true margin after Amazon’s referral fee, FBA fulfillment fees and the 2026 fuel surcharge — or your own shipping cost on FBM.
Amazon’s fees depend on your category and how you fulfil the order. The referral fee is a percentage of the sale; FBA adds a fixed fulfillment fee by size tier plus a 3.5% fuel surcharge. Pick your setup below and ListingMath does the rest.
Pick your platform. Adjust your numbers. Watch your real profit update in real time.
Rates current as of May 2026, US marketplace. International marketplaces may differ. Verify in your seller dashboard before pricing decisions.
With the default values above — a $24.99 product that costs $6.00 to source, sold FBA in a standard category at the small-standard size tier:
Total Amazon fees: $6.92. After your $6.00 product cost, you keep $12.07 — about a 48% margin.
Switch the fulfillment method to FBM and you trade the FBA fee for your own shipping cost. For bulky or heavy items that is often cheaper — try both and compare the take-home directly.
Amazon has the most complex fee structure of the four platforms. Referral fees vary by category, and FBA adds fulfillment fees on top based on size and weight tier.
Storage fees (monthly and long-term) are not included in the per-order calculation and should be tracked separately. Peak season (Oct–Jan) has higher FBA rates.
Amazon takes a referral fee on every sale, typically 8%–15% depending on category. Some categories like personal computers are lower (about 8%), electronics accessories run about 15%, and jewelry can be up to 20%. Check Seller Central for your exact category.
FBA (Fulfillment by Amazon) trades margin for scale. You pay per-unit fulfillment fees but Amazon handles storage, packing, shipping and returns. FBM (Fulfillment by Merchant) has better per-order margins if you can ship efficiently yourself. Small, light, high-margin items usually win with FBA; large or slow-moving items often win with FBM.
Amazon applies a 3.5% surcharge on top of FBA fulfillment fees to cover fuel and inflation costs. This is baked into the FBA calculation in ListingMath — you don't need to add it separately.
Yes. Amazon charges higher FBA rates from mid-October through mid-January (peak/holiday season). Storage fees also multiply during peak months. ListingMath uses standard non-peak rates — expect ~15-20% higher during peak.
No. Monthly and long-term FBA storage fees aren't tied to individual sales and should be tracked as a separate operating cost. If your inventory sits for 271+ days, long-term storage fees can eat significant margin.
Amazon PPC (sponsored ads) is a separate cost outside the referral/FBA structure. Track your average ACOS (advertising cost of sales) and subtract that from your gross margin. If your ACOS is 20% and your gross margin was 30%, your net margin after ads is 10%.
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